Combined bolt and nut-lock.



PATENTED JUNE 26, 1906.

0. E. QUITMAN, JR. COMBINED BOLT AND NUT LOOK.

APPLICATION FILED JAN.25.1906.

' INVENTOR: Dttn Eflmtrqa'r T111, BY

gar/C57 ATTORNEY UNITED STATES PATENT OFFICE.

COMBINED BOLT AND NUT-LOOK.

Specification of Letters Patent.

Eatented. June 26, 1906.

Application filed January 25,1906. Serial No. 297,726.

To all whom it may concern: 1

Be it known that I, O'r'ro E. QUITMAN, Jr., a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in a Combined Bolt and Nut-Lock {and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it. appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention has reference generally to improvements in bolts for various uses; and the invention relates more particularly to a novel bolt and nutlock which is especially adapted for use with the oscillating blades of shears, scissors, and the like, but which may also be used for the purposes of connecting any other two parts or members of any suitableconstruction, such as are used in machinery and railway construction.

' thereof ,pivotal y connected by means of a.

The invention has for its principal object to provide a simple device of the general construction and character hereinafter more fully set forth which permits of the nut to be readily screwed upon the screw-threaded end of the bolt, but prevents the accidental displacement and loosening of the nut upon the screw portion of the bolt when the latter is used as a pivotal pin for connecting two or more oscillating members or when subjected to jarring, as in the case of connecting the parts of a piece ofmachinery or thefish-plates to railway-rails, and which is adapted for use also on the axles of vehicles of the various kinds.

With the ob'ects of my present invention in view the sai invention consists, primarily, in the novel bolt and nutlock hereinafter set forth.

The invention is clearly illustrated in the accompanying drawings, in which- Figure 1 is a face view of a pair of shears or scissors havin the two oscillating blades bolt and nut lock embodying the principles of the present invention. Fig. 2 is a top edge view' of the central portions of the two shear-blades and an elevation of the bolt and nut, showing the parts in their operative relation upon the opposite faces of the blades and Fig. 3 is a transverse sectional representathe face of the one blade,

tion of the said partswith the bolt shown in elevation. Fig. 4 is an elevation of the bolt on an enlarged scale, and Fig. 5 is a face view of a washer or disk employed with the bolt when the parts are in their relative positions illustrated in said Figs. 1, 2, and 3.

Similar characters of reference are ems ployed in the above-described views to indicate corresponding parts.

Referringnow to the said drawings, the reference characters 1 and 2 indicate a pair of scissor or shear blades, which are shown to illustrate one use of the bolt and nut-lock embodying the principles of my present invention.

The reference character 3 indicates the bolt, of which 4 is the main body or shank and 5 is a suitable head, the said body or shank 4 when the bolt and nut lock is used with the shear-blades being preferably provided with a screw-threaded portion 6, but which maybe dis ensed with in some cases. The said main bo y or shank is also provided with an angular or polygonally shaped part or member 7, usually of a four-sided or square configuration.

Extending from the face of the part or member 7 is a screw-threaded shank 8, the cross area of which is less than that of the said angular part or member 7, substantially as shown in Figs. 3 and 4 of the drawin s. When the bolt has been inserted in t eregistering holes of the two blades 1 and, 2 in the manner shown in said 3 or in the two or more registering holes of a iece of machinery or the like, the said ang ar part or member 7 will extend beyond as 2, so as to be caable of receiving thereon a washer or disk 9,

avin an singularly-shaped opening or hole 10 of t e marginal confi uration which corresponds to said art or member 7. Upon the said screwshank 8 is screwed a nut 11 of any suitable configuration, that herein shown bein provided with a nut-shaped part 12 for t e reception of a wrench and with a knurled part 13for turning the-nut byhand; but theseparts are not essential, and either one may be dispensed with, according to the use to which the device is to be put. The nut 11 has its part 14 resting directly u on the face of the said washer or 9, as s own, and said nut is also preferably provided with a chambered portion 15, the purposes of which will be 7 clearly understood from an inspection ofithe figures of the drawings.

From an inspection of the several figures of the drawings it will be evident that when the nut 11 is tightly screwed home no amount of turning or shaking or jarring 0f the bolt body or shank in the bolt-holes of the connected parts will unloosen the nut 11, because the washer 9, being arranged upon the annular part or member 7 of the bolt, will turn with thesame, and the friction that is ordinarily brought upon the face of the nut is taken up by the said disk, which is locked, and the said washer or disk being thus held againstturning independently upon the bolt it prevents any independent turning and consequent loosening of the nut 1 1 upon the screw-threaded ortion or shank 8 of the bolt proper, as wil be clearly evident.

My novel bolt and nut-lock is admirably adapted for use with the pivoted and oscillating blades of shears, scissors, and the like; but the invention may be used also for connecting any two arts of a machine or upon an axle of a vehic e or for securing a fish-plate to the abutting end portions of railway-rails, beams, and the like.

tion, a head, an angular member forming a part of said main shank, a second shank extending from said angular member, said second shank being provided with a screw portion, the arrangement of the screw-threads upon said screw portions being respectively left and right handed, a washer or disk provided with an angularly-formed opening arranged upon said angular member, and a nut upon the screw portion of said second shank adapted to be screwed against said washer or disk, said nut being formed with a chamber, and having an outer nut-shaped part for a wrench, and a knurled member which serves as a finger-piece, substantially as and for the purposes set forth.

In testimony that I claim the invention set forth above I have hereunto set my hand this 15th day of January, 1906.

OTTO E. QUITMAN, JR.

Witnesses:

PAUL W. Roman, PAUL G. Ronnn. 

